<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function Star (name,age){
            this.name=name
            this.age = age
        }

        // Star.prototype.sing=function(){
        //     console.log('唱歌');
        // }
        // Star.prototype.eat=function(){
        //     console.log('吃饭');
        // }

        //完全不一样
        Star.prototype={
            constructor:Star, //千万不要把constructor 丢了
            sing:function(){
                console.log('唱歌');
            },
            eat:function(){
                console.log('吃饭');
            }

        }

        let ldh=new Star('ldh',19)
        let zxy=new Star('zxy',20)

        console.dir(Star);
    </script>
</body>
</html>